src/jtag/hla/hla_interface.c

   1 /***************************************************************************
   2  *   Copyright (C) 2011 by Mathias Kuester                                 *
   3  *   Mathias Kuester <kesmtp@freenet.de>                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2012 by Spencer Oliver                                  *
   6  *   spen@spen-soft.co.uk                                                  *
   7  *                                                                         *
   8  *   This program is free software; you can redistribute it and/or modify  *
   9  *   it under the terms of the GNU General Public License as published by  *
  10  *   the Free Software Foundation; either version 2 of the License, or     *
  11  *   (at your option) any later version.                                   *
  12  *                                                                         *
  13  *   This program is distributed in the hope that it will be useful,       *
  14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  16  *   GNU General Public License for more details.                          *
  17  *                                                                         *
  18  *   You should have received a copy of the GNU General Public License     *
  19  *   along with this program; if not, write to the                         *
  20  *   Free Software Foundation, Inc.,                                       *
  21  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
  22  ***************************************************************************/
  23
  24 #ifdef HAVE_CONFIG_H
  25 #include "config.h"
  26 #endif
  27
  28 /* project specific includes */
  29 #include <jtag/interface.h>
  30 #include <transport/transport.h>
  31 #include <helper/time_support.h>
  32
  33 #include <jtag/hla/hla_tcl.h>
  34 #include <jtag/hla/hla_layout.h>
  35 #include <jtag/hla/hla_transport.h>
  36 #include <jtag/hla/hla_interface.h>
  37
  38 #include <target/target.h>
  39
  40 static struct hl_interface_s hl_if = { {0, 0, 0, 0, 0, HL_TRANSPORT_UNKNOWN, false, NULL, 0}, 0, 0 };
  41
  42 int hl_interface_open(enum hl_transports tr)
  43 {
  44         LOG_DEBUG("hl_interface_open");
  45
  46         enum reset_types jtag_reset_config = jtag_get_reset_config();
  47
  48         if (jtag_reset_config & RESET_CNCT_UNDER_SRST) {
  49                 if (jtag_reset_config & RESET_SRST_NO_GATING)
  50                         hl_if.param.connect_under_reset = true;
  51                 else
  52                         LOG_WARNING("\'srst_nogate\' reset_config option is required");
  53         }
  54
  55         /* set transport mode */
  56         hl_if.param.transport = tr;
  57
  58         int result = hl_if.layout->open(&hl_if);
  59         if (result != ERROR_OK)
  60                 return result;
  61
  62         return hl_interface_init_reset();
  63 }
  64
  65 int hl_interface_init_target(struct target *t)
  66 {
  67         int res;
  68
  69         LOG_DEBUG("hl_interface_init_target");
  70
  71         /* this is the interface for the current target and we
  72          * can setup the private pointer in the tap structure
  73          * if the interface match the tap idcode
  74          */
  75         res = hl_if.layout->api->idcode(hl_if.fd, &t->tap->idcode);
  76
  77         if (res != ERROR_OK)
  78                 return res;
  79
  80         unsigned ii, limit = t->tap->expected_ids_cnt;
  81         int found = 0;
  82
  83         for (ii = 0; ii < limit; ii++) {
  84                 uint32_t expected = t->tap->expected_ids[ii];
  85
  86                 /* treat "-expected-id 0" as a "don't-warn" wildcard */
  87                 if (!expected || (t->tap->idcode == expected)) {
  88                         found = 1;
  89                         break;
  90                 }
  91         }
  92
  93         if (found == 0) {
  94                 LOG_ERROR("hl_interface_init_target: target not found: idcode: 0x%08x",
  95                                 t->tap->idcode);
  96                 return ERROR_FAIL;
  97         }
  98
  99         t->tap->priv = &hl_if;
 100         t->tap->hasidcode = 1;
 101
 102         return ERROR_OK;
 103 }
 104
 105 static int hl_interface_init(void)
 106 {
 107         LOG_DEBUG("hl_interface_init");
 108
 109         /* here we can initialize the layout */
 110         return hl_layout_init(&hl_if);
 111 }
 112
 113 static int hl_interface_quit(void)
 114 {
 115         LOG_DEBUG("hl_interface_quit");
 116
 117         if (hl_if.param.trace_f) {
 118                 fclose(hl_if.param.trace_f);
 119                 hl_if.param.trace_f = NULL;
 120         }
 121
 122         return ERROR_OK;
 123 }
 124
 125 static int hl_interface_execute_queue(void)
 126 {
 127         LOG_DEBUG("hl_interface_execute_queue: ignored");
 128
 129         return ERROR_OK;
 130 }
 131
 132 int hl_interface_init_reset(void)
 133 {
 134         /* incase the adapter has not already handled asserting srst
 135          * we will attempt it again */
 136         if (hl_if.param.connect_under_reset) {
 137                 jtag_add_reset(0, 1);
 138                 hl_if.layout->api->assert_srst(hl_if.fd, 0);
 139         }
 140
 141         return ERROR_OK;
 142 }
 143
 144 COMMAND_HANDLER(hl_interface_handle_device_desc_command)
 145 {
 146         LOG_DEBUG("hl_interface_handle_device_desc_command");
 147
 148         if (CMD_ARGC == 1) {
 149                 hl_if.param.device_desc = strdup(CMD_ARGV[0]);
 150         } else {
 151                 LOG_ERROR("expected exactly one argument to hl_device_desc <description>");
 152         }
 153
 154         return ERROR_OK;
 155 }
 156
 157 COMMAND_HANDLER(hl_interface_handle_serial_command)
 158 {
 159         LOG_DEBUG("hl_interface_handle_serial_command");
 160
 161         if (CMD_ARGC == 1) {
 162                 hl_if.param.serial = strdup(CMD_ARGV[0]);
 163         } else {
 164                 LOG_ERROR("expected exactly one argument to hl_serial <serial-number>");
 165         }
 166
 167         return ERROR_OK;
 168 }
 169
 170 COMMAND_HANDLER(hl_interface_handle_layout_command)
 171 {
 172         LOG_DEBUG("hl_interface_handle_layout_command");
 173
 174         if (CMD_ARGC != 1) {
 175                 LOG_ERROR("Need exactly one argument to stlink_layout");
 176                 return ERROR_COMMAND_SYNTAX_ERROR;
 177         }
 178
 179         if (hl_if.layout) {
 180                 LOG_ERROR("already specified hl_layout %s",
 181                                 hl_if.layout->name);
 182                 return (strcmp(hl_if.layout->name, CMD_ARGV[0]) != 0)
 183                     ? ERROR_FAIL : ERROR_OK;
 184         }
 185
 186         for (const struct hl_layout *l = hl_layout_get_list(); l->name;
 187              l++) {
 188                 if (strcmp(l->name, CMD_ARGV[0]) == 0) {
 189                         hl_if.layout = l;
 190                         return ERROR_OK;
 191                 }
 192         }
 193
 194         LOG_ERROR("No adapter layout '%s' found", CMD_ARGV[0]);
 195         return ERROR_FAIL;
 196 }
 197
 198 COMMAND_HANDLER(hl_interface_handle_vid_pid_command)
 199 {
 200         LOG_DEBUG("hl_interface_handle_vid_pid_command");
 201
 202         if (CMD_ARGC != 2) {
 203                 LOG_WARNING("ignoring extra IDs in hl_vid_pid (maximum is 1 pair)");
 204                 return ERROR_COMMAND_SYNTAX_ERROR;
 205         }
 206
 207         COMMAND_PARSE_NUMBER(u16, CMD_ARGV[0], hl_if.param.vid);
 208         COMMAND_PARSE_NUMBER(u16, CMD_ARGV[1], hl_if.param.pid);
 209
 210         return ERROR_OK;
 211 }
 212
 213 COMMAND_HANDLER(stlink_interface_handle_api_command)
 214 {
 215         if (CMD_ARGC != 1)
 216                 return ERROR_COMMAND_SYNTAX_ERROR;
 217
 218         unsigned new_api;
 219         COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], new_api);
 220         if ((new_api == 0) || (new_api > 2))
 221                 return ERROR_COMMAND_SYNTAX_ERROR;
 222
 223         hl_if.param.api = new_api;
 224
 225         return ERROR_OK;
 226 }
 227
 228 COMMAND_HANDLER(interface_handle_trace_command)
 229 {
 230         FILE *f;
 231         unsigned source_hz;
 232
 233         if (CMD_ARGC != 2)
 234                 return ERROR_COMMAND_SYNTAX_ERROR;
 235
 236         f = fopen(CMD_ARGV[0], "a");
 237         if (!f)
 238                 return ERROR_COMMAND_SYNTAX_ERROR;
 239
 240         COMMAND_PARSE_NUMBER(uint, CMD_ARGV[1], source_hz);
 241         if (source_hz == 0) {
 242                 fclose(f);
 243                 return ERROR_COMMAND_SYNTAX_ERROR;
 244         }
 245
 246         hl_if.param.trace_f = f;
 247         hl_if.param.trace_source_hz = source_hz;
 248
 249         return ERROR_OK;
 250 }
 251
 252 static const struct command_registration hl_interface_command_handlers[] = {
 253         {
 254          .name = "hla_device_desc",
 255          .handler = &hl_interface_handle_device_desc_command,
 256          .mode = COMMAND_CONFIG,
 257          .help = "set the a device description of the adapter",
 258          .usage = "description_string",
 259          },
 260         {
 261          .name = "hla_serial",
 262          .handler = &hl_interface_handle_serial_command,
 263          .mode = COMMAND_CONFIG,
 264          .help = "set the serial number of the adapter",
 265          .usage = "serial_string",
 266          },
 267         {
 268          .name = "hla_layout",
 269          .handler = &hl_interface_handle_layout_command,
 270          .mode = COMMAND_CONFIG,
 271          .help = "set the layout of the adapter",
 272          .usage = "layout_name",
 273          },
 274         {
 275          .name = "hla_vid_pid",
 276          .handler = &hl_interface_handle_vid_pid_command,
 277          .mode = COMMAND_CONFIG,
 278          .help = "the vendor and product ID of the adapter",
 279          .usage = "(vid pid)* ",
 280          },
 281          {
 282          .name = "stlink_api",
 283          .handler = &stlink_interface_handle_api_command,
 284          .mode = COMMAND_CONFIG,
 285          .help = "set the desired stlink api level",
 286          .usage = "api version 1 or 2",
 287          },
 288          {
 289          .name = "trace",
 290          .handler = &interface_handle_trace_command,
 291          .mode = COMMAND_CONFIG,
 292          .help = "configure trace reception",
 293          .usage = "destination_path source_lock_hz",
 294          },
 295         COMMAND_REGISTRATION_DONE
 296 };
 297
 298 struct jtag_interface hl_interface = {
 299         .name = "hla",
 300         .supported = 0,
 301         .commands = hl_interface_command_handlers,
 302         .transports = hl_transports,
 303         .init = hl_interface_init,
 304         .quit = hl_interface_quit,
 305         .execute_queue = hl_interface_execute_queue,
 306 };